Call-box.



H. 0. RUGH.

GALL BOX.

`APPLICATION FILED MAY 4,1909` Patented May 5, 1914.

3 SHEETS-SHEET 1.

H. o. RUGIL CALL BOX.

. APPLICATION FILED MAY 4, 1909.

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1, @MQW W/ ,b

H. 0. RUGH.

CALL 1am:i

PPLOATN FILED HAY 4, 1909. 1.095.525. Patented May 5, 1914,

3 SHEETS-SHEET 3.

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mijn. Imola,f or SANDWICH, ILLINOIS, ssrcnon, nY MESNE ASSIGNMENTS, 'ro' HALL emmen s SIGNAL coMrANY. A CORPORATION or MAINE.

cant-nox.

application mea may 4,

'oalll whom 'it ma concern f itv known t at' I, HARRY O. RUGH, a ,citizenof, the States, residinvr at sandwich, in the anim` f-,Dskaib and slate of Illinois, have invented a certain new and useful Improyernent in Call-Boxes, of which `the following isa full,'clear, concise, and exact description, reference being had to the cicompan ing drawings, forming a part of 1s spec' cation. My invention relates iselective signaling telephone systems, and more particularl to, a call box of this kind, and has for itso ject the provision of anew gnd improved ap faratus of this kind.-

In its Apreferre form, my invention con' templates, the revision of means fpr send-- ing a require number of impulses over a Aline wire `to selectively call one or more of alplarality of stations together, with many incidental functions in the operation of this means, as will be more apparent from its construction, which I will now describe in detail, in connl ion with the accompanyingv drawings 1llustrating one embodiment thereof, in which- Figure 1 is a diagrammatic arrangement of mygim'proved cal box and associated apratus; Fig. 2 is an open view of my call x; Fig. 3 is a view of the box Wit-h the cover closed, portions of the operating devicesbeing-broken away; and Fig. 4 is a partially sectional view, more clearly to illustrate the various details involved.

Referring more particularly to Fig. 1, the line circuit/@ver which the impulses are to be sent, is indicated at 1, 2, which, through the interposition ofthe fuse block 3, connects said line Wires to a terminal block 4. The fuse block 3 is of the ordinary type with tubular fuses and a'fcircular lightning arrester, a ground connection being also shown. From thisterminal block, the train des i patchers tele hone and signal-receiving circut is broug tout through the conductors 5 and 6. Y I.

My improved signal-sending devlce 1s adapted to transmit periodic impulses over vthe line.4 corresponding to the number of 5c the station to be called to set the various selectors, and after sending the proper impulses toestablish acertain circuit condi- Specification of Letters lPatent.

Yto calling devices for Patented May 5, 1914.

1909. serial No. 493,940.

tion, which permits the signal at the substation to operate, Whereafter the signalsendlng device impresses current on the line stations. l y

Irnpulsesare transmitted over the line wires 1 and 2 from the battery 23, which battery is connected to the two springs 24, which springs are normally in the contact position shown in Fig. 1. lVhen the relay 25 is 'actuated to draw up said springs 24, the polarity oi the battery, as connected to the line conductors 1 and 2, is reversed. This will be more particularly explained later.

Whenever relay 26 is actuated to close circuit through its armature 54, circuit is closed through the conductor 27, through the line wire fi., back over the line wire 2, through conductor 28, upper contact spring 2A, battery 23, lower contact spring 24, conductor 74, conductor 29, back to the conductor 27. Thus, for every operation of the relay 26, an impulse is sent over the line `Wires 1, 2. Now, should the relay 25 be energized temporarily, while the relay 26 is not energized, the reyerse battery polarity is transmitted over line-fconductors 1 and 2, through the agency of conductors 30 and 28.

I will now describe how the relays 25`and 26 are operated to send these various im# pulses.

My contact-making device consists ot' a wheel 31, operable by means of a handle 32, and adapted to engage the springs 33 and 34, which are normally not in contact therewith. In starting the mechanism, the handle 32 is made to engage the wheel 31, and to rotate same (referring to Fig. 1) in a contra-clockwise direction, which thereby permits spring 33 to engage a contact strip 35. which closes a circuit that can be traced from said contact spring 33. the conductor 36, key 52, conductor 37, relay 25, conductor 38, conductor 39, through the winding 40. of the y olar relay 41, tothe frame of the relay 41, t rough conductor 42, battery 43. conductor 44, element 31, and element This energizcs the relay 25, and sends current of what I will call negative polarity over the conductrs 1 and 2, to release the selective devices at theV substations. At the to release the various devices at the sub,4

same time, the coil 40 of the relay 41 repels i its armature 45, so that it is not in contactmaking position. After the arm 32 has been furt 1er swung around, spring 33brcaks with contact element 35, and spring 34 begins to engage element 31, but no Contact is established through relays 26 on this ac count, as 'circuit is not cosed. by armature tion has been called. and l desire to call fol- 45. The further actuation ofzthe arm 32, in a contra-clockwise direction, however, electrically vconnects it with the contact element 46, and thereby a circuit is established through the coil 47, which serves to repel the armature 45 to close -circuit with its contact loint 4S. The amature 45 is pivoted wit lout spring actionso that it remains in the position given to it b ,the last actuation thereof under the in uence of either coil 40 or coil 47. The manual actuation of the arm 32 thereupon ceases, and the clockwork mechanism begins to rotate the element 32 inclockwise direction, during which time spring 34 alternately engages teeth 49, thereby intermittently actuating relay 26, as the armature 45 is grounded on the frame of relay 40 until the number of impulses has been mpleted, and the spring 34 stays in prolored connection with the element 31, which t ereby maintains current upon line conductors 1 and 2, by reason of keeping relay 26 actuated, which is designed to operate the substation signal. all as more clearly explained in my co-pending application, Serial No. 478,088 filed February 15, 1909, on which Patent Number 956782 was issued May 3, 1910.

The element 31 maintains contact with the element 34 by engaging the raised portion of the element 31 providedimmediately following the teeth and this Contact is main tained for an appreciable length of time t0 actuate the substation signal. A further movement of the element 31 howeverto its zero position, carries the raised portion of the element 31 bcyondthe spring 34 to-thus again break this contact so that the parts' and 2, before the contact spring comes into the prolonged circuit connection which operates the local substation signal. After the spring 34 has left the last tooth of element 31 and then hrokenthe prolonged contact therewith. but before the clockwiserO- tation of the element 31 has been linally completed, the spring 33 again engages contact element 35, which again actuates relay 25, to send a negative impulse over the conductors 1 and 2, to release the substation devices.

It is, of course, necessary, as shown, thatY the negative impulses `be npt made coincident with the positive impulses. I provide auxiliary appliances, so that When one stalowing stations, this may be done Without again operating element 31, and for this reasonl have provided a key 51, Which`is -closed with its contact when the element 31 is on its return stroke, and this short-circuits relay 25, and prevents the sending of the negative impulse which would release the local substation stepping devices. This circuit is traced from the lower contact of the pushbuttonl to the terminal from one conductor of the magnet 25, and from the upper contact of the push button 55, conductor T1 to theiconductor 3T of the other terminal of the magnet 25, thus short circuiting this magnet during its operation.

YAfter the element 31 has completed its movement and come to rest, I operate the key 52,

lwhich, as Will be seen, closes, through the agency of the conductor 53, the saine circuit that is ordinarily established by the armature 54. and thereby, l send additional positive impulses to stepup the devices further,

'or t0 maintain a given circuit position after a number of impulses 4have been sent, thereby to call the station desired. This circuit extends from theloiver contact of the push button 52 to the line Wire 1 by means of the conductor 53 and from the spring 72 of this push button Vthrough conductor 73, conductor 74, battery 23, and conductor 2S to the other line Wire 2. I further provide a key 55, which, when depressed, actuates the re lay25,to send anegative impulse, thereby to release any substation devices, Thisieircuit extends from the lower contact of the push vbutton 55 Vthrough the batter 43, throughl coil 40, conductor 39, relay 25, and opposite contact of the push button 52baclr to the spring 75. This feature'ispiade the subjectmatter of .a co-pendingapplication. Serial 4No. 527858, filed Nov. 13, 1909. vI have thusA described the general vcircuit conditions and arrangements of my improved callbox and its subsidiary apparatus, and the fvarious in! Leemans t and the dial rotated in a clockwise direction (reii'erring to Fig. 3l. until the pin (3;) engages the' stopwtt. Then the eloelt merlinfiism. consisting ol' ille main Spring;l G3. rolates ille elements 3l and (Sl. in a eontraeloeliwise dirertion. until the. pin |50 engages the slop Si).U l provide a governor. rousisting oi the weights (il. which regu-- lates the clock n'ieelianism in smfln a manner as to provide, a uniform return movement.

1n Fig. i), the various deviees loel'ore do scribed are setv forth more in detail. a polar relay fil-1 being mounted within the box o5. and tlie eover .1S eontaining the olheiwperalingr deriees.

l sliova Condenser Uil of speeial eonstruetion to divert foreign currents nliien tend to art injuriously to telephone servire that maiV lie had over the Wires l and Q. .l provide, eomlenser (SS in conjunction with a eoil HT, through which impulses eansed lo' the element 5lpass to ilierelej.7 round out tlieso impulses to minimize tlieir eliel-t en the talliilr;- rircuit, which ma)Y lie eflltrdillslieil around eonduetors l and llvliile l have herein slrown and partiell larl described the preferretil embodiment o'l` my inrention. I do not` limit` myself to the precise Construction and arrangenn-m as. herein set ortlr` but Having tlms described my in rentiom what l Claim as lnenv and desire to seeore ltr Lei ters Patent iszn l. ln a selective call apparatusv` the romliination of main line terminals means for impressing impulses constituting e. eall on said termiii-als: eaeli call being composed ot :i given number of impulses. and means whereby a pluralitiwof Calls may lie made slufeessirely lrv impressing tlie impulses neeessary for the i'irst eall on said terminals aud subsequentl)v impressing additional ima loilses so that ilie sum oi the impnlses -ondiluting llie lirst eall and the additional impulses institute the successive walls.

2. seleetii'e `signal sending' derive. romprising in Combination a lmo'altie a linger-hold for selectively setting' said member to send a Call for a predetermined station. an impulse sending derive meelmni-n will); operated liy `said member. driving` means For automatically restoring" said memiier.'

memlier lo normal. a relaiv for rendering' the 1 operations ofsaid impulse device etlertire imefzns eontrolled'lp' `:iid member for te or ineil'eetire fer'signal sending purposes. and moans under the eontrol ol said iueiuirer for eentrolling` said relay.

il. selertii'e signal sending' devine, emu

prisiufcrf in eomliinatiou a muraille meunier. :i iingfer-liold for seleiltively selterg l t lion. an impulse sending' .levif'e m: eluniiueiulier to send-a rali for a predeiermiiw:`

z 1 .lv operated liv said ulemlur. drm-nui' means lor automaimilv restoring said memlrer to normal7 a governor for reguiatingtlie spel-til of ll.e return inorement, a rela).Y for said impulse li-rie, io render its operations elielrl'ii'tor inetl'erlii and means under tln.'

eonlrliil .il maid menilwr igor rontrelt'luj sfid relai".

t lo :i emi sending deiiee. llas;- eem s for laiuatilo: willi a iuoralnle member. meri seleeliwli .selling said member to send a wall Ylor l: i'uedeteimined station7 an impulse tlexie unllrr tlie eenlrol Ui' said member. mean for f-tmlrolling tlie operations of Said impulse lm ire to render it eti'ective or inelief-liie tor signal sending pnrpm-ies` and merlntnisni under the control of said melulrer lier operating said means.

I. .l .signal semlin;T 'levice, comprising .in romliinatiou a mfwaltle member. means; for setting; said member to stond a Call for a predetermined station. au impulse derive operated by said member` a relayv for rontrolfing tlm signaling; operutions'nf said ilupu deviare lo remler the same effective or ineil'eetii'e. and means under tlie eonirol oi' Vsai-'l meunier or t-ontrolliuosaid relay.

l?. ln a signal sending` derive. ille Conrliiualiou willi a moialile memlrer. a lingerliold 'for selecii'ely sluiting' said memlitrio send a eall ifo a predetermined station.` :tuI impulse .sending telit-e meelianirally operated lo' said member. drivinff meelianism for automaliralllr restoringhr said menlier to noruml. a gineinor for regnlatinggl tlie speed ot' the return mmement, a polarized rela): ior said impulse device, and means under tlie eontrel of said member for controlling said relay.

T. ln a signal sending device the eomliination with a` movable member: a finger hold for selectively setting said member to send a call for a` predelermined station. an impulse sendingv device operated lay uid memlier. a relay for said impulse derive. and means under the control of said memlier for artnoting said rela)v when said memlier llas rearluul tlie limit of its l'oln'ard stroke.

Si vln a signal Sending derive. llie aimlenailon nitli a movallle iueiulsrr. :i linger liold 'or selectivelyY setting' `oid nirmller li send fall For a predetermined station. au impulse sending derive operated o v said memlui; :i relay for said impulse deiife. means under the f-mitrol oli said meznlier l'or :mez-ating! said relaiY when .said memller At reaelitwl tlie limit of its forward stroke. am

1-fersel'r operating said relay when said men:v

. lier returns` ie its starting`- position.

t member. a relaiV for eontrolling tile ignmr l. ln :i ei'jual sending .leviee. tlie eomlli' soul l impulse sending .fle'viee operati-l le,

iur; nperzjlliens ef Said deriee. mid menne 1mder Llie emitrel el" 'd member for nperuiing seid .relay rlreu Suid memlwr reim-11S lo il Flaming position.

l0. iii n signal Sending' deviee. lle rumlli- Martien rfitli e line eireuil. nl :1 mumble member. :l iiiieer aieid fer Seleeirely eel'ling seid member m wud :i enll for n prellelerf le' Mrd. iiigeilw derie-p mi liie relllrii mmeilienl' (if said devil-e l1.) rejrnl arid impulses 'im tile l'iie zif. during n nrs 'for mitmtiae reim-u muren.

elle emule liv fer reii'uizilpole changer under tlv.a emlrfii mf wid niem-l l-er. und :i mur@ of erreul .fier .Quid pole elmnger.

if. n e. signal-willing der@ ljliimlimi Wili :i murulde mezrilier. n! huid for Seleeliveij.' elaine Smid wemlwr rw eend :1 cull iff-r a Eirefleermizied slinl'imi. :i siglmseting* immlwo deviee newbie l); Farid member. i fleviee :dw npelubie :rr weld merrie?. und driving' meurs 'fer resll'rriiig mid nier ller.

i3. ri n #irreal-sending' deviee. llie emu-iii 11e-.lien with a'. iflrfvfxlde wemlier. n lingeriielfil f-"fr eleriirely ,feeiigj Til Merrill-er *ne send :i 1v-:ill lfir u predeezmiiied Slzumi. n Sigurd setiiig iazzpillse device wlzeiirlilfg luy will meiiibe-. :i `sijncll-reswlring' imilfiilfe derive alle ".i".\.l)le les ziel .i'ieml'wr. Suid ele- .eluted with l View -nllernliig during' llie reime .iruke lvl.

Suid elemeul', :ind dririrg www fur rex-'n2 irre' Said member.

1 1. in e wiflimlesenfiiiiz: derive ilr uumlr nation Wir'lr/:i mumlfe i'lieiiiier. :1 lin held fer seieel'ireiv Ceiling' Sew-l n will iff-.r e,Lprefleermined werden. :l

Suid nleiiilser, :i en'id-rwreriuf eximlle e rive :lle'o fy-erralile lv' rw l- Operating' impulse derive .dem opernlde lef* en'd memlle di'if'vrir man.

'For rhlurlng '1.

Said member tu l f im {flier-infile. mid drfrvf: me'iu for :wle-

.ring l'lie return srolre` ope 'ating also when .Caid member `qtnrl's il; forward Mieke, :md driving' menus for rv Filming" Suid member. i

ll?. 1n n sigli=1l-se1id11g device, the emnlvr milieu with e laierzible memlrer, n finger lmld fer seleetirelv selling Suid member if: send n mill for n predelermiued stative. means ope Mile by said member for siglmk felling purpwsi" means operable by will ull-:uber 'wr @.Jrulfoperuting purpege nir-.me operable lijf smid. member for siguf releasing purposes. and driving nppnrzmu for redini-ing nid member.

iT. ir n eifriieil Sending; device for signal.- iiip; subsl'nlienfi. the eer.1lJinnli0n Willi :1 mfvrelile illelnlier. wenn for Selerlivelv wl'- lirg d merrilwr *di prfidllee eign-.dirig iindMl-.rfi *im* n iwe:lelermin-.rcl l'ntirim. menus ejerel'vie by mid n'iel'rll'ler for epe uing wid signal. :Helmen operable by said member for S5 .rimini Y 'ig' purpeses. and driving :rpmrrms fur reslnriiig mid member. Y

el. le Signal-@ending deviee for Signalirrgf sriilsnimie. ille emr-binnr'ifm willi :1 iiif'rfnbie member. :1 linger lwld fdr selectirelv Selinfr Seid member tu produee Call irre: iiripulseffer r. predetermined slfxrion. menne raperewle le Suid member fer Selling liie sulisfllyirm Signe.. menne operable by mid. member for Operating @eid signal. find. diivirrgj uppnrillw fer resinrinfr Suid mem-- her.

l0. In n @igual Sending derive. the enmliiA fon Wili :f1 movable member. nieuw; 'for eelirely selling Said member lo Send n Cnil or n. predetermined szilifm. eleelrn1m1- lelie-illy Controlled swileh element under re :"mzfrel 01"' Said menne: :i eireuiV y .mr said muguet :wlnped l() be elesed when nld i'ieiiizerklme been moved l0 irs limiting forward si relie.

20. En u siiml, ending derif-e. lie ."mulli vullen wili m viii liz-e terminale, of n mm2 :dale member. menus; fer .eeleeifely Seligmjl wid member le eend n mil for i. predelermisled elmimn. :m impulse deriee opernred le: seid member. r, relay operul'er'l liv ,Quid ilmwlee deriee rin llie relilrri movement nl" .will deriee lo iiipre Said impida-Q mi Smid .Celeelively Setting Said member rasend :l will for :l predetermined station. nn impulfle de- VW vice operated by said member, a relay for i an impulse of one p/olarityi's impressed upon' said teriiiinalsyvlen said member is moved in one direct/isti, means whereby a plurality of im ulses of different polarity are inn resse A/tpon said terminals when said inem1 r is/inoved in the opposite direction, and inea/ns for moving vsai member back to nor- Y ma position.

Y.' 4. In a selective call device, the combinatiqn of a movable member, means for selectifvely settingsaid member to send a call, nain 'line terminals, a main line relay, a circuit therefor, means for opening the circuit of said main line relay and impressing an impulse of one4 polarity on said terminals durin thesettin of said element,and means for lc osing sai circuit and impressing a plurality of'impulses of opposite polarity on said terminals during the return movement .of said element.

25. In a selective call device, the combina-i tion of a movable element, means for seti ting said element to send a call, main line terminals, means for impressing a plurality of impulses on said terminals of one polar-4 i itgand -means for impressing an im ulse oppositeypolarity on said line, sai Aimpulses being impressed on said line whileJ said'element is moving in one direction.

'26. In a selective call nieclianisni,tlie com 40 binaton of a rotatable impulse-sending member, means for setting said member to senda call, a normally open circuit in which said impulses are iroduced, controlled by 'said member and a apted to be closed u )on 45 said setting means reaching the limit o its setting movement, said movement being dif-- ferent for each call and equal in both directions, and means for opening said circuit when said member returns to normal posi- '50 tion.-V

27. Ina selective call mechanism, the conibination of a rotatable contact member, said member having long and short teeth am;

"being adapted to be moved an equal dis-- tance in two directions, means for mow-ii; said member to different positions, Vauch position. corresponding to a call, a wiring contact cope'x'rating with said niemeer, g, circuit, the terminals of which are consti- 60 tuted, one by the teeth of said member, and the other by said contact, whereby said circuit is closed when said contact engages said teeth, and a switch in said circuit adapted to be closed when said member is moved in B5 one direction, and opened when said me'mber is moved in the opposite direction.

In witness whereof, I hereunto subscribe my naine this 19th day of April A. D., 19,09.

HARRY o. mien.4

Witnesses MAX W. ZABEL, JEAN ELLIo'rlr.

It is hereby certified that in Lettors Patent No. 1,095,525, granted May 5, 1914, upon the application of Harry O. Rugh, of Sandwich, Illinois, for an imrrovelnent in Call-Boxes, errors s. ar in the rinted s cation r nirin corre'c-to'n as Ppe P Pec eq g A follows: 'Page l, line 74, before th word back linsert the word and referencev 0 i numeral armature 54; page 4, line 82, for the word signaling calling; and that; the said Letters Patentlshould be road with these corrections therenthnt the saine may conform to the record of the case n the lPatent. Oflice. Signed and sealed this 21st day of July, A. D., 1914. l

- R. FWVHIJIEHEAD,

Acting of Patents. 

